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Effect of NbC and VC carbides on microstructure and strength of high-strength low-alloyed steels for oil country tubular goods

文献类型：期刊论文

作者Zeng, Tianyi1,2; Zhang, Shuzhan1,2; Shi, Xianbo1,3; Wang, Wei1,3; Yan, Wei1,3; Yang, Ke1
刊名MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
出版日期2021-09-08
卷号824页码:10
关键词Carbides Tempering softening resistance Prior austenite grain size Strengthening mechanism Martensite
ISSN号0921-5093
DOI10.1016/j.msea.2021.141845
通讯作者Shi, Xianbo(xbshi@imr.ac.cn)
英文摘要High-strength low-alloyed (HSLA) steels for oil country tubular goods (OCTGs) are usually microalloyed with niobium (Nb) and vanadium (V). In this work, the microstructure and strength of HSLA steels with different Nb and V contents were studied with the purpose of investigating the role of NbC and VC carbides. The results showed that NbC carbides were responsible for restraining the growth of prior austenite grains, and when the austenitizing temperature was below 910 degrees C, it has been found that the prior austenite grain size was similar in steels with 0.02 and 0.006 wt% Nb addition. VC carbides could impede dislocation annihilation and refine Crrich carbides and martensitic blocks during tempering. Moreover, VC carbides mainly contributed to the tempering softening resistance so that the V-bearing steels exhibited a higher strength than the V-free steel after tempering at 690 degrees C-730 degrees C. To illustrate the high tempering softening resistance of V-bearing steels, the changes in various strengthening contributions induced by V addition were quantitatively evaluated. The calculation results indicated that the main reason for the high tempering softening resistance of V-bearing steels was precipitation strengthening by nanosized VC carbides, in contrast to dislocation strengthening, substructure strengthening, and precipitation strengthening due to the refinement of Cr-rich carbides.
资助项目Youth Innovation Promotion Association of Chinese Academy of Sciences[2017233]
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000687736200003
出版者ELSEVIER SCIENCE SA
资助机构Youth Innovation Promotion Association of Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/166861]  
专题金属研究所_中国科学院金属研究所
通讯作者Shi, Xianbo
作者单位1.Chinese Acad Sci, Inst Met Res, Shichangxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, Tianyi,Zhang, Shuzhan,Shi, Xianbo,et al. Effect of NbC and VC carbides on microstructure and strength of high-strength low-alloyed steels for oil country tubular goods[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,824:10.
APA Zeng, Tianyi,Zhang, Shuzhan,Shi, Xianbo,Wang, Wei,Yan, Wei,&Yang, Ke.(2021).Effect of NbC and VC carbides on microstructure and strength of high-strength low-alloyed steels for oil country tubular goods.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,824,10.
MLA Zeng, Tianyi,et al."Effect of NbC and VC carbides on microstructure and strength of high-strength low-alloyed steels for oil country tubular goods".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 824(2021):10.

入库方式： OAI收割

来源：金属研究所

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